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Uncertainty functions, a compact way of summarising or specifying the behaviour of analytical systems

Thompson, Michael (2011) Uncertainty functions, a compact way of summarising or specifying the behaviour of analytical systems. Trends in Analytical Chemistry 30 (7), pp. 1168-1175. ISSN 0165-9936.

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Official URL: http://dx.doi.org/10.1016/j.trac.2011.03.012

Abstract

Analytical chemists can advantageously use an uncertainty function to describe the performance of an analytical system in terms of the standard uncertainty or standard deviation as a function of the concentration of the analyte. This “characteristic function” is useful for estimating uncertainty at a new concentration. A similar function can be used to prescribe the uncertainty that is regarded as fit for purpose for a particular application. This “fitness function” is useful in setting standards of accuracy in proficiency tests and similar exercises without revealing the concentration of the analyte. In combination, these two functions provide a rational basis for method selection.

Item Type: Article
Keyword(s) / Subject(s): Analytical system, characteristic function, concentration, fitness for purpose, fitness function, method selection, precision, uncertainty, uncertainty function, variation with concentration of analyte
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Biological Sciences
Depositing User: Administrator
Date Deposited: 18 May 2011 10:53
Last Modified: 17 Apr 2013 12:20
URI: http://eprints.bbk.ac.uk/id/eprint/3284

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